Thousands of refugees have crammed into trains and buses in Macedonia, only a day after arriving from Greece.

Dozens were injured in violent struggles as they stormed past police trying to block them from crossing the border.

Authorities eventually relented and allowed the crowds into Macedonia.

They are attempting to reach northern Europe through Serbia and Hungary.

Most come from Syria, Iraq and Afghanistan, fleeing conflicts which have dragged on for years.

Aleksandra Davidsoka is from a local volunteer group and says their plight is a desperate one.